Initial community commit

Src/omBrowser/ratingMenuCustomizer.cpp

@@ -0,0 +1,161 @@
+#include "main.h"
+#include "./ratingMenuCustomizer.h"
+#include "./ifc_skinhelper.h"
+#include "./ifc_skinnedrating.h"
+
+#include "../Plugins/General/gen_ml/ml_ipc_0313.h"
+
+#define RATING_MINSPACECX		16
+
+RatingMenuCustomizer::RatingMenuCustomizer(HMENU hMenu, ifc_skinnedrating *skinnedRating) 
+	: ref(1), menu(hMenu), skin(skinnedRating)
+{
+	if (NULL != skin) 
+		skin->AddRef();
+}
+
+RatingMenuCustomizer::~RatingMenuCustomizer()
+{
+	if (NULL != skin)
+		skin->Release();
+}
+
+HRESULT RatingMenuCustomizer::CreateInstance(HMENU hMenu, ifc_skinnedrating *skinnedRating, RatingMenuCustomizer **instance)
+{
+	if (NULL == instance) return E_POINTER;
+	*instance = NULL;
+	
+	if (NULL == hMenu || NULL == skinnedRating) return E_INVALIDARG;
+	
+	*instance = new RatingMenuCustomizer(hMenu, skinnedRating);
+	if (NULL == *instance) return E_OUTOFMEMORY;
+
+	return S_OK;
+}
+
+size_t RatingMenuCustomizer::AddRef()
+{
+	return InterlockedIncrement((LONG*)&ref);
+}
+
+size_t RatingMenuCustomizer::Release()
+{
+	if (0 == ref)
+		return ref;
+	
+	LONG r = InterlockedDecrement((LONG*)&ref);
+	if (0 == r)
+		delete(this);
+	
+	return r;
+}
+
+int RatingMenuCustomizer::QueryInterface(GUID interface_guid, void **object)
+{
+	if (NULL == object) return E_POINTER;
+
+	if (IsEqualIID(interface_guid, IFC_MenuCustomizer))
+		*object = static_cast<ifc_menucustomizer*>(this);
+	else
+	{
+		*object = NULL;
+		return E_NOINTERFACE;
+	}
+
+	if (NULL == *object)
+		return E_UNEXPECTED;
+
+	AddRef();
+	return S_OK;
+}
+
+
+INT RatingMenuCustomizer::CustomDraw(HMENU menuInstance, INT action, HDC hdc, LPARAM param)
+{
+	if (menuInstance != menu) 
+		return FALSE;
+
+	switch(action)
+	{
+		case MLMENU_ACTION_MEASUREITEM:	return MeasureRating(hdc, (MEASUREITEMSTRUCT*)param);
+		case MLMENU_ACTION_DRAWITEM:		return MLMENU_WANT_DRAWPART;
+		case MLMENU_ACTION_DRAWBACK:		break;
+		case MLMENU_ACTION_DRAWICON:		break;
+		case MLMENU_ACTION_DRAWTEXT:		return DrawRating(hdc, (DRAWITEMSTRUCT*)param);
+	}
+
+	return FALSE;
+}
+
+HRESULT RatingMenuCustomizer::GetValue(INT itemId, INT *valueOut)
+{
+	if (NULL == menu) return E_UNEXPECTED;
+
+	WCHAR szBuffer[32] = {0};
+	INT cchBuffer = GetMenuStringW(menu, itemId, szBuffer, ARRAYSIZE(szBuffer), MF_BYCOMMAND);
+	if (cchBuffer < 1 || cchBuffer > 5) 
+        return E_INVALIDARG;
+	
+	for (INT i = 1; i < cchBuffer; i++)
+	{
+		if (szBuffer[i -1] != szBuffer[i])
+			return E_INVALIDARG;
+	}
+
+	if (NULL != valueOut)
+		*valueOut = cchBuffer;
+
+	return S_OK;
+}
+
+INT RatingMenuCustomizer::MeasureRating(HDC hdc, MEASUREITEMSTRUCT *pmis)
+{
+	RECT rect;
+	if (NULL == skin || NULL == hdc || 
+		FAILED(GetValue(pmis->itemID, NULL)) || 
+		FAILED(skin->CalcMinRect(5, &rect)))
+	{
+		return FALSE;
+	}
+	
+	pmis->itemHeight = rect.bottom - rect.top + 6;
+	
+	TEXTMETRIC tm;
+	if (GetTextMetrics(hdc, &tm) && 
+		(UINT)(tm.tmHeight + 2) > pmis->itemHeight)
+	{
+		pmis->itemHeight = tm.tmHeight + 2;
+	}
+				
+	INT spaceCX = (pmis->itemHeight > RATING_MINSPACECX) ? pmis->itemHeight : RATING_MINSPACECX;
+	pmis->itemWidth = rect.right - rect.left + (2 * spaceCX) - (GetSystemMetrics(SM_CXMENUCHECK) - 1);
+
+	return TRUE;
+}
+
+INT RatingMenuCustomizer::DrawRating(HDC hdc, DRAWITEMSTRUCT *pdis)
+{
+	INT value;
+	if (NULL == skin || NULL == hdc || FAILED(GetValue(pdis->itemID, &value)))
+		return FALSE;
+
+	INT spaceCX = ((pdis->rcItem.bottom - pdis->rcItem.top) > RATING_MINSPACECX) ? 
+					(pdis->rcItem.bottom - pdis->rcItem.top) : 
+					RATING_MINSPACECX;
+
+	RECT rect;
+	CopyRect(&rect, &pdis->rcItem);
+	rect.left += spaceCX;
+	
+	UINT menuState = GetMenuState(menu, pdis->itemID, MF_BYCOMMAND);
+	UINT trackingValue = (0 == ((MF_DISABLED | MF_GRAYED) & menuState)) ? value : 0;
+	
+	return SUCCEEDED(skin->Draw(hdc, 5, value, trackingValue, &rect, RDS_LEFT | RDS_VCENTER | RDS_HOT));
+}
+
+#define CBCLASS RatingMenuCustomizer
+START_DISPATCH;
+  CB(API_CUSTOMDRAW, CustomDraw);
+END_DISPATCH;
+#undef CBCLASS
+